AutoCodes – GMC – P2730 2018 GMC Sierra

P2730 2018 GMC Sierra Code - Pressure Control Solenoid Valve 5 Control Circuit High Voltage

Quick Answer

The pressure control solenoid 5 is part of the control solenoid valve assembly which has no serviceable parts. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2730 2018 GMC Sierra indicates Pressure Control Solenoid Valve 5 Control Circuit High Voltage.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 186

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2730 2018 GMC Sierra Description

The pressure control solenoid 5 is part of the control solenoid valve assembly which has no serviceable parts. The normally low-pressure control solenoid 5 regulates and directs oil pressure to the 1-2-3-4 clutch regulator valve and 1-2-3-4 clutch boost valve. Increasing pressure control solenoid 5 pressure increases pressure to the 1-2-3-4 clutch. The Transmission Control Module varies the current to the pressure control solenoid 5 through a low-side driver. Increasing the current to pressure control solenoid 5 increases oil pressure by closing OFF the solenoid exhaust port. Decreasing the current to pressure control solenoid 5 decreases oil pressure by opening the exhaust port. Pressure control solenoid 5 power is supplied by the Transmission Control Module through a high side driver. The high-side driver protects the circuit and components from excessive current flow. If excessive current flow is detected, the high side driver will turn OFF. When the fault is corrected, the high-side driver will reset.
The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module detects an open or short to voltage on the clutch pressure control solenoid valve 5 control circuit for 1 s.

OBDII Code P2730 2018 GMC Sierra - Pressure Control Solenoid Valve 5 Control Circuit High Voltage - AutoCodes.com — P2730 2018 GMC Sierra Code - Pressure Control Solenoid Valve 5 Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2730 2018 GMC Sierra?

Low transmission fluid level
Dirty transmission fluid
Faulty Control Solenoid Valve Assembly
Control Solenoid Valve Assembly harness or connectors
Control Solenoid Valve Assembly circuit is open or shorted

How to Fix the DTC P2730 2018 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2730 2018 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2730 2018 GMC Sierra code?

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Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2730 2018 GMC Sierra Code

1. What are common symptoms of OBDII code P2730 in a 2018 GMC Sierra?

The common symptoms of code P2730 include harsh shifting, transmission slipping, decreased fuel efficiency, and an illuminated Check Engine Light.

2. What can cause the Pressure Control Solenoid Valve 5 Control Circuit High Voltage code in a 2018 GMC Sierra?

Possible causes of code P2730 in a 2018 GMC Sierra include a faulty pressure control solenoid valve, wiring issues, a defective transmission control module, or low transmission fluid levels.

3. How serious is the P2730 trouble code in a 2018 GMC Sierra?

The P2730 code should be addressed promptly as it can lead to transmission performance issues and potentially cause further damage if left unresolved.

4. Can I drive my 2018 GMC Sierra with the P2730 code?

It is not recommended to drive your GMC Sierra with the P2730 code present, as it can result in transmission issues and potentially unsafe driving conditions.

5. How do I diagnose and repair the Pressure Control Solenoid Valve 5 Control Circuit High Voltage code in a 2018 GMC Sierra?

Diagnosing and repairing code P2730 typically involves checking the wiring connections, testing the pressure control solenoid valve, inspecting the transmission control module, and ensuring proper transmission fluid levels.

6. Will resetting the trouble codes clear the P2730 code in a 2018 GMC Sierra?

Resetting the trouble codes may temporarily clear the P2730 code, but if the underlying issue causing the code is not addressed, it is likely to reappear.

7. How much does it cost to fix the P2730 code in a 2018 GMC Sierra?

The cost of fixing the P2730 code in a 2018 GMC Sierra can vary depending on the root cause of the issue, but it may involve replacing the pressure control solenoid valve, repairing wiring, or addressing other transmission-related issues.

8. Can a DIY enthusiast fix the P2730 code in a 2018 GMC Sierra?

While some DIY enthusiasts may be able to diagnose and repair the P2730 code, it is a complex transmission-related issue that may require specialized tools and expertise, so seeking professional help is recommended.

9. How long does it take to repair the P2730 code in a 2018 GMC Sierra?

The repair time for the P2730 code in a 2018 GMC Sierra can vary depending on the exact cause of the issue and the extent of the repairs needed. It may take a few hours to a full day for a professional technician to diagnose and fix the problem.

10. Can unresolved P2730 code cause further damage to a 2018 GMC Sierra?

Yes, leaving the P2730 code unresolved can potentially cause further damage to the transmission system of a 2018 GMC Sierra, leading to more extensive and expensive repairs down the line.